Vol 5, No 2-2 (2006): Special Issue

Full Issue

TECHNICAL SCIENCES
Expert research of effective thermalconductivity of samples made from material МR
Zhizhkin A.M.
Abstract

The choice of the method for determining effective thermal conductivity of porous samples made from mat erial MR is substantiated. Listed are basic dat a and principal installment diagram for res earch of heat-conducting properties of goods made from MR results of thermal conductivity determination.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):15-18
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Interaction of drops of a plume of a liquid with heated granulouse units
Nigoduk V.E., Lykin A.U.
Abstract

In the article the experiment al research of interaction of a drop wise plume of a liquid with heated granulouse fillings from pellets of the different sizes and bed depths is considered. The outcomes of experiments are represented by the way of relations of a mass share of a vaporized liquid to temperature of a high layer of a filling, width of a filling and sizes of pellets.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):19-22
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The optical fiber systems for initiation of high-energy materials
Mordasov V.I., Poylov V.V., Galimova G.A., Hayrutdinov M.R.
Abstract

The optical fiber systems with semiconductor lasers are advanced means of single use in engine aircraft systems. They consist of semiconductor lasers, optical fibers or cable, matching devices between source and fiber, optical connectors and dividers, etc. The application of fiber optical elements except of foreign mission penetration. Тhese systems allow to create delay lines depend on fiber l ength and to make possible signal multiplication, spectral multiplexing, resolve light transmitting band at using different optical elements and creat e the multichannel initiation lines. The semiconductor laser with power at 1 W building in fiber were using to construct the detonator systems.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):23-26
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The implementation of laser illumination for movable objects location
Mordasov V.I., Kuznetsov V.I., Sazonnikova N.A.
Abstract

The possibilities of method of laser location implementation with use of changeable wavelength, pulse frequency and pulse duration were investigated. For the present method dependence of characteristics of surface reflecting against laser wavelength, pulse frequency and pulse duration at the surface light sounding were expose. The changeable wavelength and tunable pulse-periodic operation of operation are unique possibilities of laser systems.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):27-31
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Ways of the direction of perfection of electromagnetic atomizers for engines of automobiles
Zvjagintsev V.A., Zuev B.K., Lysenko J.D.
Abstract

The design of an atomizer distinguished by high speed, simplicity and minimum quantity of details is developed

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):32-35
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Matrix analysis in enterprise executive system
Volgin A.V., Belachewskij G.E.
Abstract

In work various ways of matrixes application in business operation are analyzed. The relation (connection) between elements of two and more sets can be submitted in the matrix form. The composition of relations allows to simplify the analysis of connections between elements of sets. The example of us e of priorities matrixes in a control system of the enterprise is resulted.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):36-40
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Simulation technology of not put in order conditions of aviation GTE
Achmedzjanov D.A., Vlasova E.S., Kishalov A.E.
Abstract

The method of various unsteady operating modes modeling of any GTD schemes, realized in system of imitating modeling of aviation GTD work in termogasdynamic aspect together with management and the control elements - DVIGwp is offered.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):41-44
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The laser information measurement system for investigation of high-speed processes
Laptev N.I., Mordasov V.I., Poylov V.V., v G.A., Hayrutdinov M.R.
Abstract

The authors have developed the installation for investigation of initiation by laser radiation such high-speed processes, as combustion, explosive combustion, change the combustion in detonation and just detonation in condensed systems. The developed installation allows to explore at the same rate with temporary resolution the motion of front of sample under its irradiation by laser source and the scatter of products of decomposition. It is established that the increasing of wavelength of laser radiation increase the beam energy threshold required for explosive decomposition initiation in given systems.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):45-49
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The investigation of energy consuption at the interaction of laser emission with high energy materials
Sazonnikova N.A., Poylov V.V., Galimova G.A., Hayrutdinov M.R.
Abstract

By using relatively high laser power densities, it is possible to quickly heat small portion of the explosive to the critical temperature. The application of lasers to initiate explosives is advantageous because it allows to closely control and measure how much energy is delivered to the explosive and the rate at which that energy is delivered. The researcher has some degree of control over how much of the explosive material is heated by the laser. This is accomplished primarily by varying the spot size produced by the laser, as control over the penetration depth of the laser light into the explosive is much more limited and difficult to measure.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):50-54
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High temperature pressure sensor for engine working processes control
Limanova N.I.
Abstract

During the engine tests the working processes control is conducted. Among others such control requires different pressure measurements. The most of the processes are accompanied by the working environment temperatures rise, which may be highly essential. Contemporary means of pressure measurements, which are used in automatic systems for the engine tests control are intended for work in temperature range up to 80ОС. Unlike known the suggested high temperature pressure sensor ensures precision of measurements at the expense of compensation of errors, which appear during pressures definition at high environment temperature. The sensor permits to widen of temperature range up to 400ОС. For that the additional measurements error doesn’t exceed 0,5%.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):55-58
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Nozzle with a property of shape memory
Limanova N.I., Didenko R.A., Limanov I.A., Chirkov A.V., Shishkin P.A.
Abstract

Nozzle is a part of a water-jet ejector, which is included to water heating. In recompense for the flow rate and temperature of heat-t rans fer agent decreasing the nozzle section area will expand. This results in increasing temperature and flow rate up to the initial level. Nozzle is made of nickel-titanium alloy that has a property of shape memory.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):59-61
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Independent from destabilizing factors influence contactless optic sensor for position and vibration measurements in automatic systems
Limanova N.I.
Abstract

During contactless vibration measurements of disks, blades and other rotation construction elements of engine it is necessary to inspect of the operation gap between research object surface and the sensor with high precision (0.05 % – 0.1 %) in the conditions of such destabilizing factors influence, as strong electromagnetic and electrostatic fields, environment pollution, wear of construction elements of engine, high temperatures, feeding sources voltages variations, earch surface reflecting coefficient changes and so on. Moreover the influence factors are changing accident ally. In order to solve this problem the two-channel optic sensor with modulated emission for precision positioning was elaborated. In this sensor the positioning accuracy is achieved by subtraction of the photodiodes currents, research object surface is illuminated by modulated emission with the help of semiconductor laser, and laser pulses duration is chosen divisible to 1/50 Hz. The long-time positioning error (during a few hours) at the output of the device doesn't exceed 0,1 micrometer in the conditions of enumerated destabilizing factors influence.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):62-65
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Automated system of gas turbine engines termogazdynamic calculation and analysis
Crupenitch I.N., Kuzmitchev V.S., Kulagin V.V., Tkatchenko A.Y.
Abstract

The article describes the computer-aided system of GTE thermogasdynamic design and analysis ASTRA and its subsystems created for GTE designing and development.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):66-72
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The method of bypass engines turbocompressors structural-geometric parameters matching
Krupenich I.N., Kuzmichev V.S.
Abstract
The article describes the method of bypass engines turbocompressors structural-geometric parameters matching intended for use in the computer-aided thermogasdynamic design systems.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):73-75
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Automated variant aircraft GTE turbocompressor flow path designing
Krupenich I.N., Kuzmichev V.S., Kulagin V.V.
Abstract

The article describes the problem of GTE turbocompressor flow path designing and the computer-aided subsystem created for solving it.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):76-81
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Method of gas turbine engine control program and law optimization with accordance to efficiency parameters of aircraft
Kuzmichev V.S., Tkachenko A.Y.
Abstract

The article describes the method of gas turbine engine control program optimization with accordance to efficiency parameters of aircraft.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):82-86
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Use of criterion average residual stresses for forecasting a limit of endurance of details at the increased temperature
Kirpichev V.A.
Abstract

The opportunity of use of criterion average residual stresses for forecasting a limit of endurance of the strengthened details with concentrators is shown at the increased temperature.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):87-90
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Prognostication of the technological residual deformations of slim disks after strengthening by means of superficial plastic straining
Bukaty S.A., Kondratov A.P., Bukaty A.S.
Abstract
The method is designed for the technological residual deformations prognostication of slim disks after superficial strengthening. This method is based on elastic coupling of simple elements. The elements are the result of slim disk segmentation. Reaction of residual tensions adduced as equivalent strains, which are applied to simple elements. This method solve the problem of optimum regime strengthening for small-hard details from the type «slim disk».
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):91-95
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Development of mathematic model for determination of rational processing environments on diamond burnishing operations used for manufacturing parts of aerospace technics
Sidorov S.U., Skuratov D.L.
Abstract

Mathematic model for determination of rational processing environments on diamond burnishing operations used for manufacturing responsible parts of aerospace technics was developed. Algorithm and calculation program were made basing on this model.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):96-100
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Using of the liquids with the high absorbing ability in lamellar vibration isolators
Gromakovsky D.G., Ponomarjov Y.K., Kudjurov L.V., Silaev B.M., Kotov A.S., Shigin S.V.
Abstract

For a number of designs lamellar vibration isolators the effective silicon organic liquids are selected with the high absorbing ability, released by domestic industry and optimum reliefs are chosen on surfaces of plates. The estimation of efficiency created vibration isolators is executed at bench dynamic tests - in a range of frequencies from 5 up to 500 Hz vibration isolators reduces the force transmitted on the case of the car from 4 up to 6 times.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):101-104
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Friction and resource of articulate spherical bearings working without lubrication
Drozdov Y.N., Nadein V.A., Putchkov V.N., Putchkov M.V.
Abstract

The methodology of determination of a resource (with use of dependence for definition of intensity of the wear process submitted in generalized variables) and friction coefficient of spherical hinge plain bearings, working without lubrication is developed. Comparison of the results obtained from developed methodology and results of experiments which has shown the satisfactory consent is made. It has allowed to draw a conclusion that, the calculation formulas offered in work, can be used at the design stage of bearings.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):105-108
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The method of research of geometrical parameters of a vakuum vortical pipe and parameters of a gas stream
Dorofeeva T.S.
Abstract
There was develope the method of mathematical modelling of processes of a hot changing in vacuum vortical pipe. As a resault, the method allows to define the geometrical sizes of a vacuum vortical pipe, the charge of gas through it, pressure and temperature and change of full pressure on an input in a vacuum vortical pipe and geometrical parameters of a pipe and a core under thermal loading.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):109-112
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The information system aimed at supporting the reliability of aviation gas-turbine engines
Sarychev S.V., Loginova N.G.
Abstract

This publication contains the description of an information system of supporting the reliability on the level of an aviation engine-building company as an element of the overall airworthiness control dedicated to the fleet of serial aviation gas-turbine engines. The reader will see the database existing at NPO Saturn used to control the level of  fail-safety and configuration management of a fleet of aviation gas-turbine engines at the stage of serial production based on monitoring over the arrays of failures (malfunctions) and the engine accumulated flight hours. Among the reviewed subjects, we can see the functions of the reliability information system and modernization of the engine safety aimed at fine-tuning the Russian and the western approaches to the airworthiness management.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):113-118
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About possibility of the development absolutely stable systems of control (new principle of control)
Chervonyuk V.V.
Abstract
In the article on the base of the theoretical analysis it is shown that in the control management systems, which are built on PID - regulator the possibility of instability of the process of the regulation is not absolutely excluded. The possibility of realization of absolutely stable system of control by execution of the amplitude-phase correction («A-F»-regulator) has been installed the algorithm of realization of «A-F»- regulator in condition of the broadband influence is presented.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):119-123
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Identification of mathematical model two spool gas-turbine engine
Gabdullin V.S., Gumerov H.S., Alatortsev V.P.
Abstract
In work the identified mathematical model concrete two spool gas-turbine engine, us ed is created as a power-plant by planes - battleplane. In the given work for a basis of mathematical modelling program complex Gas Turb is taken.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):124-126
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Planning of multifaktorial experiments at research of dynamic processes aviation engines
Gishvarov A.S., Zyrianov A.V., Mogilnitskiy E.A., Ageev G.K.
Abstract

The method of multi factorial planning of experiment is considered at res earch of dynamic processes and characteristics aviation engines during operational development and serial operation.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):127-130
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Design and experimental investigation of combustors atomizing device
asiliev A.Y., Maiorova A.I., Sviridenkov A.A., Yagodkin V.I.
Abstract

Design procedure of combustors atomization device including pressure swirl fuel nozzle +air axial swirler + its sidewall is proposed based on hydraulic calculations of simple pressure swirl fuel atomizer and air swirler. Geometrical parameters are chosen so that fuel jets are not collided with air swirler wall and propagated in air layer or near its inner boundary at the end of the sidewall. Example of atomizing device PS-90 type is given. By means of optical diagnostics for simultaneous fuel drop size and concentration determination in spray cross sections, modified atomization system were developed with low drop size (SMD lesser 20μm) and angular non-uniformity (lesser 15%).

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):131-135
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Distribution calculation of dropwise – liquid and vaporous fuel in combustion chamber spray – type component
Tretiyakov V.V.
Abstract

This work devoted to investigation of frontal device with 3-stage swirler for low-emission combustion chamber. The numerical model includes the Reynolds equations and Lagrangian individual droplet equations. Fuel distribution calculations were made for any real engine regimes. The results show large difference in vapour and liquid fuel phase concenration distributions.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):136-141
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Substantiation of performance criteria of accelerated tests
Minigaleev S.M.
Abstract
Method of choice of parameters (volume, modes and duration) accelerated tests for engine of multialternative application is considered.
Authors have offered criteria of efficiency of accelerated tests of engines φ1, φ2, φ3 and φ4.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):142-145
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The influence of the speed pressure on degree of increasing of the full pressure in compressor
Kuznetcov V.I.
Abstract

It Is Shown that on all state of working engine energy to compressor is from turbine not only, but also from running up flow of the air. Product ?v ?to* remains such, either as at supply of the energy to compressor from turbine only. The Energy of the air for compressor increases on the same value, on which falls the energy running up flow. On constant frequency of the rotation турбокомпрессора ?to* grows that brings about reduction spare to stability of the functioning(working) the compressor

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):146-149
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The concept and the results of elaboration of the automated test bench for testing the rocket engine
Lapshin A.V., Lapshin E.A., Nigodjuk V.E., Starostenko S.A.
Abstract

The work deals with the concept and the results of elaboration of the automated test bench for testing the Rocket Engine of Small Tractive Force (STFRE). The methods of measuring the basic engine parameters are observed, as well as signal transformation systems, HW (hardware) and SW (software) for data measuring, registration and processing and for operating the engine under different conditions presupposed by the programme.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):150-154
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The automated informative complex for test operation of aviation gas turbine engine
Bochkarev S.K., Grigoryev V.A., Lapshin A.V., Ivashin Y.S.
Abstract

The schemes and the results of elaboration of the automated informative complex for test operation of aviation gas turbine engine are presented in this work. This automated complex is used for laboratory works in the process of education, as well as for realization of research activities. The work deals with HW (hardwarе) and SW (softwarе) of automated probation, with the help of which one can run the remote control experiments in real -time mode by means of information network, including Internet.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):155-160
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Excitation of pressure pulsations in the working fluid by vibration of the pipeline
Shakhmatov E.V., Prokofiev A.B., Mironova T.B.
Abstract

The analytical model is considered, allowing to settle an invoice parameters of pulsations of a working liquid in pipeline systems at kinematic excitation of their vibration.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):161-164
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Research of acoustic characteristics of material МR
Igolkin A.A., Izzheurov E.A., Hunuan C., Gouchi U.
Abstract

Results of the study of the acoustic features of the material MR are brought in work for different thicknesses, porosity and diameter of the wire. The curves of a sound absorption on one of the major parameters of a porous material to hydraulic diameter are generalized.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):165-169
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Structural – technological characteristics of sound-absorbing constructions of the engine NK-93 air inlet duct
Fedortchenco D.G., Macsimenkov V.I., Molod M.V., Tchistjakov V.A., Nazarov N.V.
Abstract
Structural –technological specialties of sound - absorbing constructions of the engine NK -93 air inlet duct are considered.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):170-172
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Hydraulic losses in products from material MR
Zhizhkin A.M.
Abstract

The expediency of use of effective hydraulic diameter, which considers both a mean of a size of pores, and distribution of pores on sizes, is proved at generalization of empirical data as a characteristic size of porous medium.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):173-176
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Development of the techical requrement forming and validation technique in the GTE through course computer designing
Prodanov M.Y., Tsoy A.Y.
Abstract

Within the limits of the through course computer designing (TCCP) process of forming a technical requirement in conformity with standards occurs on a KiPDLA chair under direction of teachers. A «Technical requirement on GTE designing forming and validation» process is broken into subprocesses in which based upon initial a conceptual GTE model and then GTE block diagram are created, criteria of optimization are defined, and the constructive-power scheme of support arrangement is created. Working on «Technical requirement on GTE designing forming and validation» procedure the opportunity of creation of the information system intended for support of GTE designing processes, storing, searching and the retrospective analysis of the information at training the future designer is shown.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):177-182
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Development of the technique of gas turbine engines' data storage structure forming
Prodanov M.E., Tsoy A.Y.
Abstract

The organization of gas turbine engines data storage leans on information integration of processes during the through course computer project execution. Using hierarchical structure of design process, it is possible to create information object of the engine designing in the product data management (PDM) system environment – a «GTE data storage» database, in which the special classes, having there own set of attributes are created and used. The subordinate class inherits attributes from a higher class. Thus, in hierarchical structure of data the description information of GTE becomes fuller and specific.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):183-188
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NK-37-1 with the chamber of conclusive incineration of fuel in front of the power turbine – there is the most convenient way of modernization of electric stations
Nikishin V.A., Peshkov L.I., Sheludko L.P.
Abstract
Here is taken the analysis of the most efficient ways of the development of thermal power plants and regional electric stations in particular. There is shown the most convenient way of modernization of electric stations according to the vapour gas scheme on the basis of the developed energetic gas turbine plants НК–37-1, which is provided with the chamber of conclusive incineration of fuel in front of the power turbine and with the steam boilers making recovery and generating steam for turbine units of the electric station.
In the article also emphasized that using the developed gas turbine plants comparing to НК – 37-1conduces to increase electric power to 10 MW.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):189-193
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A performance analysis of the pulsejet intended for aircraft acceleration up to mach number 0,9…1,2
Panchenko V.I., Borisoglebskij A.V.
Abstract

It was investigated and optimized pulsejet`s performances. As compared with other flying analogues the engine is available flying up to 0,9…1,2 Mach number. The pulsejet could be used as propulsion system for high-speed unmanned aircraft, as space vehicle’s first-stage engine.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):194-199
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Experience of using the technology of electrolytic ironing on manufacturing the heavy-loaded bearings
Gromakovskij D.G., Ganin A.N., Potapkin A.I., Shigin S.V., Nikolaev B.A., Haustov V.I.
Abstract

In the report results of development and application of technology electrolytic ironing are presented on manufacture heavy-loaded bearings. The design of the equipment for covering is described and modes of processing are resulted.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):200-203
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Kinetic criterion of damaging and destruction of surface layers on friction
Ibatullin I.D.
Abstract

In the paper an interpretation of fatigue damaging the surface layers on friction are given. Results of working out a kinetic criteria of durability of surface layers is presented. Received criterion may be used for estimation of activation characteristics of destruction of materials, modeling the damageability and destruction of materials, and wear calculation.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):204-209
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Development of techniques and means of estimating the activation parameters of destruction of surface layers by scratching method
Ibatullin I.D., Gromakovsky D.G., Barynkin V.E.
Abstract

In the article results of development of methods and apparatus for estimating the activation parameters of destruction of surface layers are described. Techniques are based on activating the plastic instability of a surface layer by the scratching method. The received results can be used for an experimental estimation of parameters of kinetic model for calculation of speed of fatigue wearing.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):210-216
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Perfection of kinetic model of fatigue wearing of surfaces on friction
1 1., 1 1., 1 1.
Abstract

In the article results of laboratory research of wear process of pair friction «bronze - steel» with the imposed normal vibration are described. The technique and the stand for wear tests at the imposed vibration are presented. Ways of an estimation of own frequency of a frictional joint are shown. Results of development of calculation model of kinetic type for an estimation of speed of wear process are resulted in view of influence of dynamic loadings.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):217-222
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The dynamic approach to the problem solving in statically indefinable elastic-systems on the example of threaded connections
Kurushin M.I., Kurushin A.M.
Abstract
If on a d'Alembert principle dynamics of elastic-systems can be viewed as a statics taking into consideration of inertial forces it is possible on the contrary, a statics to view as dynamics but at a zero value of inertial forces. We offer it in this examination on an example of statically indefinable threaded connections. Such generalized approach helps to find efforts and stresses in very complex elastic-systems including at their dynamic loading.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):223-227
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Kinetics of fatigue failure of hard alloys
Nassif, N.S., Ibatullin I.D.
Abstract
In the paper results of an experiment al researching the kinetics of fatigue failure of hard alloy teeth of chisels are described at cyclic shock influence. It is shown, that kinetics of damaging the teeth may be described by calculation models, received on the basis of structure-energetic theory.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):228-233
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The stand and method of testing the hard arms of chisels on shock resistance
Nassif N.S., Bogomolov R.M., Ibatullin I.D., Kremlev V.I.
Abstract

In the article results of modernization of the stand and perfection of a technique of testing the hard alloy teeth of chisels on resistance to cyclic shock loadings are presented. The technique of the accelerated tests based on kinetic model of damaging of hard alloys is described.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):234-239
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Kinetics of fatigue failure of hard alloys
Nassif N.S., Ibatullin I.D., Kremlev V.I., Barynkin V.E.
Abstract
In the paper results of an experimental research of kinetics of fatigue failure of hard alloy teeth of chisels are described at cyclic shock influence. It is shown, that kinetics of damaging the teeth may be described by calculation models, received on the basis of structure-energetic theory.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):240-244
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Designing of progressive technological processes of laser processing of details by manufacture of engines and power installations
Murzin S.P.
Abstract

Use of laser technologies, which expediency of application and advantage are defined by an opportunity of a contactless, strictly dosed out intensive supply of energy on a surface of a product, is a progressive direction in двигателестроении and manufacture энергоустановок. In work some methodological principles of designing of the laser technological processes providing increase of operational characteristics of details are formulated. Technological process of welding by pulse radiation with the set spatial distribution of capacity of details the engine and power installation is developed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):245-249
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Technological method of increase of operational characteristics of details of engines and power installations by laser processing
Murzin S.P., Artjushina V.I.
Abstract

The structurally functional circuit of formation of operational characteristics of details is submitted at laser processing by continuous radiation. Target parameters of such technological processes are depth of processing, the form of a zone of processing, property of the processed material, and also a roughness of a surface. Distinctive features of the offered approach from traditional are that the form of a laser stain and distribution of density of capacity of radiation are considered as key parameters of a mode of processing, the choice of parameters of a laser source and development of technological optical systems is carried out according to results of the decision of a return problem of heat conductivity. The developed technological method was applied at designing technology of increase of wear resistance of a cranked shaft of the piston engine.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):250-254
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Forming of bearings’ data structure in GTE information sphear
Zharsky V.B., Zrelov V.A., Makarchuk V.V., Prodanov M.E.
Abstract
The documentation connected to an object "Roller bearing support ", in different specification classes is presentation. In particular the exposition of objects «The bearing certificate» in which is presented: bearing legend, precision class, standards on which the bearing is manufactured and others. Such approach allows to develop block diagram of the turbine engine unified module - "unified support element ".
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):255-259
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Installation of a radiation-cooled nozzle of a carbon-carnonic composite material to the combustion chamber of main engine 11Д58МРБ ДМ-SL
Mezhevov A.V., Skoromnov V.I., Kozlov A.V., Tupitsin N.N., Khaskekov V.G.
Abstract
A radiation cooling nozzle of a carbon-carbonic composite material is installed on main engine 11Д58М, which is used on the Upper Stage DM-SL as a part of the Zenit-3SL LV in the Sea Launch project. The specific impulse of the engine increased by 4 s through an increase of the nozzle geometric expansion ratio. The results of flight tests show a good convergence with design-theoretical and experimental data.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):260-264
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Method of regressive analysis of experimental and calculation characteristics of centripetal microturbines nozzle apparatus
1 1., 1 1., 1 1.
Abstract

Method of verification on adequacy of experimental and calculation characteristics of centripetal microturbines nozzle blade’s crowns has been worked up. Method of estimation on statistical importance of this characteristics different branch has been proposed.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):265-269
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Determination of the gas flow and pressure pulsations on the input of orifice plate flowmeter's measuring gas circuit
1 1., 1 1., 1 1.
Abstract

The method of calculation of flow and pressure pulsations on the orifice plat e flowmeter’s input is presented. As an input data, pressure signals at the two points within flowmeter’s gas circuit are used. Obtained expressions are recommended for use in the digital correction of complementary error because of gas pressure pulsations.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):270-275
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Assessment criteria of objects technical status in view of reconstruction of gas-transport system of limited company "Samaratransgas"
1 1., 1 1., 1 1.
Abstract

In the report criteria and demands to transfer of objects to reconstruction are observed. Thus it is necessary to apply the system approach in view of technological interconnection of objects. The basic criteria of the system approach at the question solution of objects transfer to reconstruction are technological and economic criteria. Reconstruction should be executed in interconnection with objects of gas production and underground storage of gas.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):276-279
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Ways of implementation of the reconstruction program of limited Company "Samaratransgas"
.
Abstract
In paper the purposes, problems and the concept of object reconstruction of gas-transport system and principles of formation of the program of reconstruction till 2010 are observed. The basic purposes of reconstruction are: maintenance of design productivity, raise of reliability of gas transportation, maintenance of industrial and ecological safety of gas-transport installations, raise of economic efficiency of transportation of gas.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):280-285
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On selection of equivalent loading of standard smooth specimens for determining low-cycle durability of gas-turbine engine major components
1 1., 1 1., 1 1., 1 1.
Abstract

The results of the procedure for determining low-cycle durability of gas-turbine engine parts evaluation are presented. The evaluation is based on the results of standard smooth specimens tests, with application of the loading cycle deformation amplitude intensity characteristics.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):286-290
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About the mechanics of the contact in a cylindrical roller bearing
1 1.
Abstract

The fallowing matters will be covered: load distribution between solids of revolution in a cylindrical roller bearing and contact taking into consideration: the actual geometric forms of the contacting solids; rigidity of the shaft and the body; admixture in the kubricant and reciprocal skewing of the races.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):291-296
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Perfection of operational characteristics calculation techniques for the decision of task of gas turbine engine control program optimization
1 1., 1 1., 1 1.
Abstract

The article describes methods of perfection of operational characteristics calculation techniques for the decision of task of gas turbine engine control program optimization

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):297-300
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Research of influence of azimuthal orientation of monocrystal on frequency characteristics and forms of oscillations
1 1., 1 1., 1 1.
Abstract

Results of research of frequency characteristics and forms of natural oscillations of flat polycrystal and monocrystal samples from heat resisting nickel alloy ЖС6Ф and monocrystal лопаток turbines from alloy ЖС32, having various azimuthal orientations presented at constant axial orientation.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):301-306
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Automatical system for determination the residual tensions in the segments of complex forms
., .
Abstract
The system is designed for the residual tensions determination in the superficial stratum of segments by means of mechanical method. Distinguishing singularities of this system are foundry body of apparatus and console scheme of fixing the segments. Invented methods enable the capability of the residual tensions determination in the segments of thin, round, random, variable and involute forms of cross sections.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):307-310
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Properties of the low-carbon steel 08AL welds
1 1., 1 1.
Abstract

Analyzed problem of hardness increasing in the welds of steel 08Al of the tailored welded blanks (TWB). Given the description of the steel 08Al, TWB sampling by laser and WIG welding, mechanical tests and metallographic analysis, definition of thermal cycle of metal in molten pool. Revealed the hardness increasing result from reversion of the steel structure and bainite phase initiations.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):311-314
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Application of the finite-element method (FEM) to specify design model when defining rotor critical speeds by classical methods
., .
Abstract
This work demonstrates by the example of calculation of LPC rotor critical speeds that application of FEM allows to specify greatly the design model developed by initial parameters method due to consideration of compliance of stator elements of complicated and to achieve good compliance of design and experimental data.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):315-318
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Calculation method of limiting plastic strains in the angular concentrator zone
1 1., 1 1., 1 1.
Abstract

The approach to determination of plastic strains near tip of angular notch is considered by the example of problems of the uniaxi al a stretching of cylindrical and flat samples with angular notches. At calculation we propose, that the sample body is compound: the material is elastic-plastic as a whole, but we propose that the material is rigid-plastic in small area near critical point (the tip of the notch). This assumption allows realizing the numerical-analytical approach to determination of strain fields.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):319-322
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Realization of structural and object-orintes ways of designing of GTE
1 1., 1 1.
Abstract

Features of the structural and object-oriented approaches applied at designing of complex systems, such as aviation GTE are considered. On an example of educational process of GTE designing, comparison of the considered approaches is executed. When realization of design process is conducted with use of an engineering data management system, the advantage of object-oriented decomposition is shown.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):323-325
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Designing of aircraft GTE in PDM environment
1 1., 1 1.
Abstract

The problem of organizing a teamwork of experts, participating in the process of designing of an aircraft GTE is considered. The basic stages of an aviation GTE life cycle are resulted, components of a design stage and an modern PDM-systems' capabilities, allowing to raise general efficiency of process of designing are in detail analysed. It is shown, that designing of GTE in the PDM-system environment allows to reduce terms of design and technological preparation and execution of the project as a whole.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):326-330
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Russian aviation engines' manufacturing organizations cooperation model
1 1., 1 1., 1 1.
Abstract

On the basis of the determined regularities of turbine engines key parameters evolution, change of their construction-force schemes and applications the participation schemes of the native development and manufacturing factories of aviation turbine engines are offered in three actual engines making programs: for a naval aviation, for passenger and transport trunk-route aeroplanes and low-sized. These programs are caused by Russian aviation necessity at modern historical phase.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):331-333
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Calculation on longevity and strength of machine components at non-stationary regimes of the loading in view of torsion oscillations of elastic-systems
., .
Abstract
In engine installations with propellers and without them as in elastic-systems there are forced torsion oscillations. They are necessary for considering at strength calculations and longevity on fatigue of details of gears. Expressions for coefficients of equivalence on the basis of a hypothesis of the linear summation of faults on the contact and broken fatigue are developed, allowing to consider effect of torsion oscillations on longevity of machine components both at stationary and at non-stationary regimes of a loading. Certainly, the account of effect of torsion oscillations results in diminution of a design life of details.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):334-339
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The capillary head in porous products from material MR
1 1.
Abstract

Effect of distribution of pores on sizes on capillary characteristics of products from material MR is researched. Expressions for a capillary pressure and a head for porous designs from material MR are gained.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):340-342
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The model of structurally-parametrical optimization of the technological process of mechanical treatment during the stage of designing
1 1., 1 1.
Abstract

The model of structurally-parametrical optimization of the process of mechanical treatment of components during the stage of designing the technological process is proposed. As a main criterion, the summary expenditures of production are assumed. The salvation of a problem are determined values of guided parameters, depended on the determined initial conditions and static characteristics of casual parameters.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):343-346
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The cooling meanings for "gasodynamic" bending shroud of working blade for a HP turbine from turbofan engine with high gas temperature
1 1., 1 1., 1 1.
Abstract

The cooling meanings for "gasodynamic" bending shroud of working blade for a HP turbine are considered. Its analysis is made from the view point of cooling efficiency and adapt ability to manufacture.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):347-351
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Impulse & energetic characteristics of insufficiently expanded two-phase combustion-gas stream
1 1., 1 1.
Abstract

Mathematical model of a one-measuring motion of particles in combustion-gas stream of hypersonic stream generator (HSG) has been developed. Dependences of impulse and energetic characteristics of inoverexpanded two-phase from process parameters are received. Research influence of some parameters on the optimum of particles kinetic energy carried out.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):352-357
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Computer-aided model construction of turbomachine blades
., .
Abstract
We consider a problem of constructing three-dimensional turbomachine blades and a method of the formalized description of a blade structure. We suggest a technique for computer-aided construction of three-dimensional turbomachine blades in the CAD/CAE/CAM system environment.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):358-363
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Prediscovery in the field of the whirlwind reverse-flow type combustion chambers making
., .
Abstract
The scheme of the whirlwind reverse-flow type combustion chamber generalized model is submitted. The parametric equation connecting thermodynamic and gasdynamic properties of main combustion chamber burners units, permitting to receive integral characteristics of combustion chamber probed version and to evaluate effect of each basic elements making a combustion chamber, on its output parameters ful fillment is received.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):364-367
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Perspectives of use in GTU of the whirlwind reverse-flow type combustion chanbers, working for non-traditional fuel
.
Abstract
Perspectives of the whirlwind reverse-flow type combustion chambers, working on non – traditional fuel are considered. Effect of influence of a combustion chamber transition from natural gas to pirolizon the compressor and the turbine activity is determined. Us e of the whirlwind reverse-flow type combustion chamber for obtaining of gasificating agent in the thermochemical reactor and in the capacity of the main combustion chamber in GTU is considered.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):368-370
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Calculated study of influence of squinted form pressure side of outlet trailing edge of axial turbine vane upon projection losses in non-cooled vane row
1 1., 1 1.
Abstract

The article sets forth the calculated research of influence of squinted form pressure side of outlet t railing edge of non-cooled vane section of axial turbine upon projection losses in vane row. The justification of the results received has been stated and recommendations on the choice of vanes trailing edge have been suggested.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):371-374
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Energetic power as a criterion of optimization
1 1., 1 1., 1 1.
Abstract

In this article it’s given an influence of cutting modes on the expense of specific energy as an example of milling processes and round grinding at typical details of an internal combustion engine final processing. As a criterion of optimization it’s considered the energetic power of cutting process.

VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):375-377
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Dynamics of toothed wheels with pin connections
., .
Abstract
At gyration of a toothed wheel pinned with the shaft and at change of an angular standing of pins rigid parameters of an elastic-system can vary. It can cause both the forced parametric excitation, and parametric instability and resonances of an elastic-system, which includes such joints. Requirements and the reasons of such oscillations are investigated. Conclusion is done, that only single-pin connection can induce a dynamical instability of elastic-systems including systems with toothed wheels.
VESTNIK of Samara University. Aerospace and Mechanical Engineering. 2006;5(2-2):378-383
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